Is the W900A 2pt or 10pt WB? I'm not sure what is disabled. I tried to check in the owners threads on AVS if CAL-Day and CAL-Night are available in those modes but I'm not certain. I think it should if you put it in PC mode as you are just changing what the input is so ideally I would think it would keep access to the same settings, but hard to say. I know with some models enabling those modes disable any type of processing but they do not disable the calibration controls.
Just 2 point. I no longer have the Samsung, but I do remember that PC Mode settings were stored seperately, despite it being activated by a label change.
I got the sony w802 and so far I'm not impressed (except the 3D is nice).
Is it supposed to have such terrible viewing angles? I mean my DS isn't much worse. My old Samsung LCD was better. Also the color seems off (comparing it next to my Dell Ultrasharp monitor) and the screen never seems to get black, always light grey or blueish.
When I turn the 3D on the screen gets a lot brighter and better, is there a setting to keep it like that for 2D?
I don't know, maybe mine's defective but I'm really not impressed so far.
I have the W9, but maybe I can help. On the remote press Home, then go to Settings > Preferences > Eco, and set Light Sensor off. That should give you a nice permanent brightness boost.
According to hdtvtest.co.uk, the viewing angles should be fine within 45-degrees. On your couch(?) does the quality suffer if you sit to the left or right?
For color try setting the color temperature to Warm1 or 2 as a starting point, and you can adjust the white balance in the advanced menu if it's still too cool/warm.
I'm not sure about the black levels, but hdtvtest recommends setting Adv. Contrast Enhancer to Low. The W9 (and probably the W8) supports full range RGB. I know on some TVs blacks will show up grey if they get limited RGB. You can adjust the range for each input by pressing Home > Settings > Picture & Display > Pro Picture Setup > Dynamic Range.